/* ===== Variables ===== */
:root {
    --color-primary: #059669;
    --color-primary-dark: #047857;
    --color-primary-light: #d1fae5;
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-dark: #1e293b;
    --color-text: #475569;
    --color-text-light: #94a3b8;
    --color-bg: #f8fafc;
    --color-white: #ffffff;
    --color-border: #e2e8f0;
    --color-success: #16a34a;
    --color-danger: #dc2626;
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 24px;
    --shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.10);
    --transition: .2s ease;
}

/* ===== Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-dark);
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--color-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.main-nav {
    display: flex;
    gap: 8px;
}

.admin-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: 0.95rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.admin-link:hover {
    color: var(--color-accent-dark);
    border-color: var(--color-accent);
}

.nav-link {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--color-text);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    border: 2px solid transparent;
    transition: var(--transition);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
}

.btn-outline {
    background: transparent;
    border-color: var(--color-white);
    color: var(--color-white);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary-dark);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 0.85rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    color: var(--color-white);
    padding: 80px 0;
    overflow: hidden;
}

/* ===== Hero Slider (background of .hero) ===== */
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slider-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(4, 120, 87, 0.88), rgba(5, 150, 105, 0.7));
}

.hero-slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.25);
    border: none;
    color: var(--color-white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    z-index: 2;
    transition: background 0.2s;
}

.hero-slider-nav:hover {
    background: rgba(255, 255, 255, 0.45);
}

.hero-slider-nav.prev {
    left: 16px;
}

.hero-slider-nav.next {
    right: 16px;
}

.hero-slider-dots {
    position: absolute;
    bottom: 16px;
    right: 24px;
    display: flex;
    gap: 8px;
    z-index: 2;
}

.hero-slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    padding: 0;
}

.hero-slider-dot.active {
    background: var(--color-white);
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.hero h1 {
    font-size: 2.6rem;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero p {
    color: var(--color-primary-light);
    font-size: 1.05rem;
    margin-bottom: 28px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.hero-stat {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}

.hero-stat strong {
    display: block;
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.hero-stat span {
    font-size: 0.9rem;
    color: var(--color-primary-light);
}

/* ===== Section ===== */
.section {
    padding: 64px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-header h2 {
    font-size: 1.8rem;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.section-header p {
    color: var(--color-text-light);
}

.section-bg {
    background: var(--color-white);
}

/* ===== Categories ===== */
.categories {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.category-pill {
    padding: 8px 18px;
    border-radius: 999px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: var(--transition);
}

.category-pill:hover,
.category-pill.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* ===== Campaign Grid & Card ===== */
.campaign-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.campaign-card {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.campaign-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.campaign-thumb {
    height: 160px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 14px;
}

.campaign-thumb .badge {
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-dark);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 999px;
}

.campaign-thumb .badge-status {
    position: absolute;
    top: 14px;
    right: 14px;
    background: var(--color-success);
    color: var(--color-white);
}

.thumb-1 { background: linear-gradient(135deg, #fb7185, #f97316); }
.thumb-2 { background: linear-gradient(135deg, #38bdf8, #6366f1); }
.thumb-3 { background: linear-gradient(135deg, #34d399, #0ea5e9); }
.thumb-4 { background: linear-gradient(135deg, #fbbf24, #f97316); }
.thumb-5 { background: linear-gradient(135deg, #4ade80, #16a34a); }
.thumb-6 { background: linear-gradient(135deg, #a78bfa, #ec4899); }

.campaign-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.campaign-body h3 {
    font-size: 1.1rem;
    color: var(--color-dark);
    line-height: 1.4;
}

.campaign-body p.desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.progress-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 999px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text);
}

.progress-info strong {
    color: var(--color-dark);
}

.campaign-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-light);
    border-top: 1px solid var(--color-border);
    padding-top: 12px;
}

/* ===== Filter bar (campaigns list) ===== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

/* ===== Campaign Detail ===== */
.detail-layout {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 40px;
    align-items: start;
}

.detail-thumb {
    height: 320px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.detail-category {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}

.detail-title {
    font-size: 1.9rem;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.detail-story {
    color: var(--color-text);
    white-space: pre-line;
    margin-bottom: 32px;
}

.detail-story h3,
.donor-list h3 {
    color: var(--color-dark);
    margin-bottom: 12px;
}

.donor-list {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

.donor-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
}

.donor-item:last-child {
    border-bottom: none;
}

.donor-item .donor-name {
    font-weight: 700;
    color: var(--color-dark);
}

.donor-item .donor-message {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.donor-item .donor-amount {
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

.donor-item .donor-time {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.empty-state {
    color: var(--color-text-light);
    text-align: center;
    padding: 24px 0;
}

/* ===== Donation Card (sticky sidebar) ===== */
.donation-card {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 28px;
    position: sticky;
    top: 90px;
}

.donation-card h3 {
    color: var(--color-dark);
    margin-bottom: 4px;
}

.donation-stat {
    margin: 18px 0;
}

.donation-stat .collected {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-dark);
}

.donation-stat .target {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.donation-meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-top: 10px;
    color: var(--color-text);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--color-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.form-checkbox input {
    width: 16px;
    height: 16px;
}

.amount-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 12px;
}

.amount-option {
    padding: 10px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-text);
    background: var(--color-white);
    transition: var(--transition);
}

.amount-option:hover {
    border-color: var(--color-primary);
}

.amount-option.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* ===== Alerts / Banners ===== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-info {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border: 1px solid #5eead4;
}

.form-message {
    margin-top: 12px;
    font-size: 0.9rem;
    font-weight: 600;
}

.form-message.success {
    color: var(--color-success);
}

.form-message.error {
    color: var(--color-danger);
}

/* ===== About / Contact ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 20px;
}

.contact-info-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.contact-info-item .icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    flex-shrink: 0;
}

.contact-info-item h4 {
    color: var(--color-dark);
    margin-bottom: 2px;
}

.contact-form-card {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
}

/* ===== Admin ===== */
.admin-login {
    max-width: 420px;
    margin: 60px auto;
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 32px;
}

.admin-login h2 {
    color: var(--color-dark);
    margin-bottom: 6px;
}

.admin-login p {
    margin-bottom: 24px;
    color: var(--color-text-light);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 32px;
    align-items: start;
}

.admin-card {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

.admin-card h3 {
    color: var(--color-dark);
    margin-bottom: 18px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
}

.admin-table th {
    color: var(--color-text-light);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.admin-table td {
    color: var(--color-dark);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-dark);
    color: #cbd5e1;
    margin-top: 40px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 32px;
    padding: 48px 0 24px;
}

.footer-brand p {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    margin-bottom: 14px;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-contact p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    padding: 18px 0;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .hero-inner,
    .detail-layout,
    .about-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }

    .campaign-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .donation-card {
        position: static;
    }
}

@media (max-width: 640px) {
    .main-nav {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 12px 20px;
        border-bottom: 1px solid var(--color-border);
        display: none;
    }

    .main-nav.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .campaign-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .amount-options {
        grid-template-columns: repeat(2, 1fr);
    }
}